import javafx.application.Application;
import javafx.stage.Stage;

public class Example08 extends Application {

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) {
        int num =19;
        if (num % 2 ==0){
            //判断条件成立，num被2整除
            System.out.println("num是一个偶数");
        }

    }
}
